    <div class="cabinet-contanier" style="position:relative">
<div class="nav">
    <ul nz-menu [nzMode]="'inline'" style="width: 240px;">
      <li nz-submenu [(nzOpen)]="isOpenOne" (nzOpenChange)="openChange('one')">
        <span title><i class="anticon anticon-mail"></i>储存</span>
        <ul>
          <li nz-menu-group>
            <span title>服务器</span>
            <ul>
              <li nz-menu-item>xxx服务器</li>
              <li nz-submenu>
                  <span title>刀片服务器</span>
                <ul>
                  <li nz-menu-item>xxx刀片服务器</li>
                  <li nz-menu-item>xxx刀片服务器</li>
                </ul>
              </li>
            </ul>
          </li>
          <li nz-menu-group>
            <span title>网络与安全</span>
            <ul>
              <li nz-menu-item>sn300b3</li>
              <li nz-menu-item>sn300b4</li>
            </ul>
          </li>
        </ul>
      </li>
    </ul>
    <img src="./assets/sn300b1.png" style="height:60px;" alt="">
    </div>
    <div id="cabinet" style="width: 800px; height: 750px; margin: auto; border: solid 1px #2898E0;position:absolute;top:0;left:250px"></div>
    </div>
    